MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Giant hypertrophic gastritis
A premalignant disorder of the stomach characterized by overgrowth of the stomach lining (the gastric mucosa) and hypoalbuminemia (low blood serum level of albumin) due to loss of albumin by the stomach. The abnormalities of the stomach…
Read the definitionRandom terms
Show more- Regulatory sequence A sequence of bases in DNA that controls gene expression
- Stenosis, aortic Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the aorta. This narrowing…
- Leukemia, smoldering A condition in which the bone marrow does not function normally. It does not produce enough blood cells. This…
- Ductus arteriosus A key arterial shunt (ductus) in fetal life. Before birth, blood pumped from the heart through the pulmonary…
- Isolate A group in which mating is always between members of the group. For example, the Amish.
- Plaque, skin A plaque is a broad, raised area on the skin. Because it is raised, it can be felt (palpated). By definition…
- Reaction, allergic A reaction that occurs when the immune system attacks a usually harmless substance (an allergen) that gains…
- Adductor muscle Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the…
- Cyst, tarsal Also called a chalazion or a Meibomian cyst, an inflammation of the oil gland of the eyelid.
- Eyelid The lid or cover of the eye, a movable fold of skin and muscle that can be closed over the eyeball or opened…
- Osteology The study of bones. The branch of anatomy or physical anthropology that deals with bones. Bone-ology
- OKT3 Brand name for muromonab-CD3, an immunosuppressant drug given intravenously to reverse acute rejection of…